Home / 79,909,121.60-119,919,669.60-51,225,012.80

Finding the Fourth Proportional to 79,909,121.60, 119,919,669.60 and 51,225,012.80

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Solution

The fourth proportional to 79,909,121.60, 119,919,669.60 and 51,225,012.80 is: 76,873,409.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,909,121.60 : 119,919,669.60 = 51,225,012.80 : x
  2. Step 2: Convert to fraction form
    79,909,121.60/119,919,669.60 = 51,225,012.80/x
  3. Step 3: Cross multiply
    79,909,121.60x = 119,919,669.60 × 51,225,012.80
  4. Step 4: Simplify right side
    79,909,121.60x = 6,142,886,610,231,770
  5. Step 5: Solve for x
    x = 6,142,886,610,231,770/79,909,121.60
  6. Step 6: Final answer
    x = 76,873,409.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.